CN102014415B - Method for detecting base station feed system on line, base station system and antenna suite - Google Patents
Method for detecting base station feed system on line, base station system and antenna suite Download PDFInfo
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- CN102014415B CN102014415B CN201010567791.8A CN201010567791A CN102014415B CN 102014415 B CN102014415 B CN 102014415B CN 201010567791 A CN201010567791 A CN 201010567791A CN 102014415 B CN102014415 B CN 102014415B
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Abstract
The invention discloses a method for detecting a base station feed system on line, a base station system and an antenna suite. The base station antenna system comprises antenna test accessories which are arranged at antenna fixed positions and are used for fixing test terminals; the antenna test accessories comprise fixed test positions which are used for arranging the test terminals and making the direction of polarization of transmitted signals relatively fixed with the direction of polarization of a base station receiving antenna when the test terminals are at the fixed test positions; and the output characteristics of the base station receiving antenna are fixed in a preset error range. By the method, the performance for detecting the feed system is improved; the online performance detection can be immediately and conveniently performed on the whole base station system after the project installation of the whole base station system is completed; and that the base station feed system is in a bad condition can be instantly found and immediately improved to ensure that the base station system for project delivery meets the requirement on design performance.
Description
Technical field
This programme relates to a kind of mobile communication base station system, relates in particular to a kind of method and base station system and antenna set of online base stations detected antenna-feedback system.
Background technology
The existing detection method of base station antenna feeder system is to use VSWR tester, and under the off-line state of base station, artificial enforcement measured.But from the base station system application data collecting, the fault of base station antenna feeder system is still a lot, making high performance base station system cannot give full play to it should have performance.Further research is found, existing base station system, and its antenna-feedback system does not all have accurately complete online test method at present; Of poor quality when project installation, while making each connected node outofkilter of base station antenna feeder system, particularly antenna feeder, current base station system can not be carried out online accurately detection.
The defective mode of base station antenna feeder system directly have influence on base station system sensitivity, affect the overall performance quality of base station system; One uses the system of high-performance high-quality base station transceiver probably because the bad base station system that becomes a low performance of installation of antenna feeder.So it is the problem that needs solution that a kind of method of online base stations detected antenna-feedback system is provided.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method and base station system and antenna set of online base stations detected antenna-feedback system, improves the detection performance to antenna-feedback system.
In order to solve the problems of the technologies described above, the invention provides a kind of base station system of online base stations detected antenna-feedback system, comprise base station antenna system, base station antenna feeder system and base station transceiver; Described base station antenna system comprises the antenna measurement accessory for fixing test terminal that is positioned over antenna fixed position; Described antenna measurement accessory comprises the fixing test position for placing test terminal, the polarised direction that test terminal is transmitted in the time of this fixing test position is relative fixing with the polarised direction of base station reception antenna, and the output characteristic of base station reception antenna is fixing in default error range.
Further, above-mentioned base station system can also have following characteristics:
The output characteristic of base station reception antenna fixedly refers to that in default error range antenna is fixed with respect to the forward gain of test terminal and backward gain is fixed; The input signal power (PTA) that antenna refers to antenna input interface with respect to the forward gain of test terminal and test terminal antenna opening receive the difference of the signal power (PRM) detecting; Antenna refers to the difference of the transmit signal power (PTM) of test terminal and the output signal power (PRA) of antenna output interface with respect to the backward gain of test terminal.
Further, above-mentioned base station system can also have following characteristics:
To dual polarized antenna, the polarised direction that described antenna measurement accessory transmits test terminal in the time of described fixing test position is identical with the polarised direction of each reception antenna of dual polarized antenna, and the output characteristic of each reception antenna of dual polarized antenna is identical in default error range.
Further, above-mentioned base station system can also have following characteristics:
Described base station antenna system, also for the characteristic parameter, antenna of each radio-frequency unit of storing base station antenna feeder system with respect to the permissible error of the index parameter of standing wave of the forward gain of test terminal and backward gain, the each connected node of base station antenna feeder system or the index parameter of reflection loss, base station antenna feeder system loss; The characteristic parameter of described radio-frequency unit comprises the Insertion Loss parameter of radio-frequency unit.
Further, above-mentioned base station system can also have following characteristics:
Described base station antenna system, also for according to the signal power loss thresholding of the calculation of parameter base station antenna feeder system forward link of pre-stored base station antenna feeder system; And calculate in real time the actual signal power loss of forward link in base station antenna feeder system; Signal power loss thresholding in the actual signal power loss of the base station antenna feeder system forward link calculating in real time and antenna-feedback system forward link is compared, when actual signal power loss is less than or equal to described power loss thresholding, the forward link of judging base station antenna feeder system is normal, when actual signal power loss is greater than described power loss thresholding, judge that the forward link of base station antenna feeder system is abnormal.
Further, above-mentioned base station system can also have following characteristics:
Described base station antenna system, also for according to the signal power loss thresholding of the calculation of parameter base station antenna feeder system reverse link of pre-stored base station antenna feeder system; And calculate in real time the actual signal power loss of reverse link in base station antenna feeder system; Signal power loss thresholding in the actual signal power loss of the base station antenna feeder system reverse link calculating in real time and antenna-feedback system reverse link is compared, when actual signal power loss is less than or equal to described power loss thresholding, the reverse link of judging base station antenna feeder system is normal, when actual signal power loss is greater than described power loss thresholding, judge that the reverse link of base station antenna feeder system is abnormal.
In order to solve the problems of the technologies described above, the present invention also provides a kind of antenna set; Described antenna set comprises test terminal, antenna measurement accessory and antenna; Described antenna measurement accessory comprises the fixing test position for placing test terminal, the polarised direction that test terminal is transmitted in the time of this fixing test position is relative fixing with the polarised direction of described antenna, and the output characteristic of described antenna is fixing in default error range.
Further, above-mentioned antenna set can also have following characteristics:
The output characteristic of described antenna fixedly refers to that in default error range antenna is fixed with respect to the forward gain of test terminal and backward gain is fixed; The input signal power (PTA) that antenna refers to antenna input interface with respect to the forward gain of test terminal and test terminal antenna opening receive the difference of the signal power (PRM) detecting; Antenna refers to the difference of the transmit signal power (PTM) of test terminal and the output signal power (PRA) of antenna output interface with respect to the backward gain of test terminal.
In order to solve the problems of the technologies described above, the invention provides a kind of method of online base stations detected antenna-feedback system, comprising: in base station antenna system, place the antenna measurement accessory for fixing test mobile terminal in antenna fixed position; Described antenna measurement accessory comprises the fixing test position for placing testing mobile terminal, the polarised direction that testing mobile terminal is transmitted in the time of this fixing test position is relative fixing with the polarised direction of the each reception antenna in base station, and the output characteristic of the each reception antenna in base station is fixing in default error range; Testing mobile terminal is placed in fixing test position at described antenna measurement accessory, and by the information interaction base stations detected antenna-feedback system of described testing mobile terminal and base station system.
Further, said method can also have following characteristics:
The output characteristic of base station reception antenna fixedly refers to that in default error range antenna is fixed with respect to the forward gain of test terminal and backward gain is fixed; The input signal power (PTA) that antenna refers to antenna input interface with respect to the forward gain of test terminal and test terminal antenna opening receive the difference of the signal power (PRM) detecting; Antenna refers to the difference of the transmit signal power (PTM) of test terminal and the output signal power (PRA) of antenna output interface with respect to the backward gain of test terminal.
Further, said method can also have following characteristics:
Described base station antenna system is according to the signal power loss thresholding of forward link in the calculation of parameter base station antenna feeder system of pre-stored base station antenna feeder system; And calculate in real time the actual signal power loss of forward link in base station antenna feeder system; Signal power loss thresholding in the actual signal power loss of the base station antenna feeder system forward link calculating in real time and antenna-feedback system forward link is compared; when actual signal power loss is less than or equal to described power loss thresholding; the forward link of judging base station antenna feeder system is normal; when actual signal power loss is greater than described power loss thresholding, judge that the forward link of base station antenna feeder system is abnormal; Described base station antenna system is according to the signal power loss thresholding of reverse link in the calculation of parameter base station antenna feeder system of pre-stored base station antenna feeder system; And calculate in real time the actual signal power loss of reverse link in base station antenna feeder system; Signal power loss thresholding in the actual signal power loss of the base station antenna feeder system reverse link calculating in real time and antenna-feedback system reverse link is compared, when actual signal power loss is less than or equal to described power loss thresholding, the reverse link of judging base station antenna feeder system is normal, when actual signal power loss is greater than described power loss thresholding, judge that the reverse link of base station antenna feeder system is abnormal.
Further, said method can also have following characteristics:
The method that calculates in real time the actual signal power loss of forward link in base station antenna feeder system comprises:
Base station system is initiated the detection to base station antenna feeder system forward link, by test configurations information notice test terminal; Base station system is opened forward link to be measured and is closed other forward link; Base station system sends test massage with allocating power PTB; Test terminal receives the power P RM that calculates this test signal after this test signal and feeds back to base station system, and the signal power loss of base station system calculation base station antenna-feedback system forward link is the difference of the power P RM of the test signal that calculates of allocating power PTB and test terminal.
Further, said method can also have following characteristics:
The method that calculates in real time the actual signal power loss of reverse link in base station antenna feeder system comprises:
Base station system is initiated the detection of base station antenna feeder system reverse link, and by test configurations information notice test terminal; Be positioned at the test terminal of antenna measurement accessory with allocating power PTM emissioning testing signal, and feed back to base station system; Base station system detects the power P RB of this test signal that each base station reverse antenna opening receives; The signal power loss of base station system calculation base station antenna-feedback system reverse link is the difference of the power P RB of this test signal of receiving of allocating power PTM and base station.
Further, said method can also have following characteristics:
By after being positioned over testing mobile terminal test on the fixing test position of described antenna measurement accessory and knowing that described base station antenna feeder system is normal, by described antenna measurement accessory removal from antenna; Meanwhile, in antenna for base station overlay area, select fixing test point to place test terminal and base station system is carried out information interaction and measurement, and standard performance data storage using the performance data of the mobile terminal recording and base station system as this test point; When need base stations detected antenna-feedback system in base station operation process time, test terminal being placed in to described test point retests again, whether in default error range, judge that whether base station antenna feeder system is normal according to the difference of the performance data of the mobile terminal recording and base station system and the standard performance data that prestores.
The method of the online base stations detected antenna-feedback system that the present invention proposes is a kind of new detection method for online detection, can improve the detection performance to antenna-feedback system, make base station system entirety after project installation completes, just can carry out on-line performance detection to base station system entirety easily immediately, in the time there is defective mode in base station antenna feeder system, can immediately find and improve immediately, ensure that the base station system of engineering delivery reaches the requirement of design performance, for wireless network planning and the optimization of base station system are laid a good foundation; Meanwhile, keep base station system in best performance state, also make base station and mobile terminal all in best minimum power consumption state.
Brief description of the drawings
Fig. 1 is the structural representation of base station system in embodiment;
Fig. 2 is the schematic diagram that " antenna, antenna measurement accessory and on testing mobile terminal " is antenna set as an antenna integral product in embodiment;
Fig. 3 is the principle schematic that the forward link of base station antenna feeder system detects;
Fig. 4 is the principle schematic that the reverse link of base station antenna feeder system detects;
Fig. 5 is the method schematic diagram of online base stations detected antenna-feedback system in embodiment.
Embodiment
As shown in Figure 1, the base station system of online base stations detected antenna-feedback system, comprises base station antenna system, base station transceiver (BTS) and is connected to base station antenna feeder system between the two.Base station antenna system comprises the antenna measurement accessory for fixing test mobile terminal that is positioned over antenna fixed position; Antenna measurement accessory comprises the fixing test position for placing testing mobile terminal, the polarised direction that testing mobile terminal is transmitted in the time of this fixing test position is relative fixing with the polarised direction of the each reception antenna in base station, and the output characteristic of the each reception antenna in base station is fixing in default error range.
The output characteristic of base station reception antenna fixedly refers to that in default error range antenna for example, is fixed with respect to the forward gain of test terminal (testing mobile terminal is testing mobile phone) and backward gain is fixed; The input signal power (PTA) that antenna refers to antenna input interface with respect to the forward gain of test terminal and test terminal antenna opening receive the difference of the signal power (PRM) detecting; Antenna refers to the difference of the transmit signal power (PTM) of test terminal and the output signal power (PRA) of antenna output interface with respect to the backward gain of test terminal.
In typical case's application, to the dual polarized antenna of integrated multiple reception antennas, the polarised direction that described antenna measurement accessory transmits test terminal in the time of described fixing test position is identical with the polarised direction of each reception antenna of dual polarized antenna, and the output characteristic of each reception antenna of dual polarized antenna is identical in default error range.
In the present invention, the antenna set of indication comprises test terminal, antenna measurement accessory and antenna.Described antenna measurement accessory comprises the fixing test position for placing test terminal, the polarised direction that test terminal is transmitted in the time of this fixing test position is relative fixing with the polarised direction of described antenna, and the output characteristic of described antenna is fixing in default error range.The output characteristic of described antenna fixedly refers to that in default error range antenna is fixed with respect to the forward gain of test terminal and backward gain is fixed; The input signal power (PTA) that antenna refers to antenna input interface with respect to the forward gain of test terminal and test terminal antenna opening receive the difference of the signal power (PRM) detecting; Antenna refers to the difference of the transmit signal power (PTM) of test terminal and the output signal power (PRA) of antenna output interface with respect to the backward gain of test terminal.
As shown in Figure 2, antenna measurement accessory is antenna part of the whole, and it is positioned at fixed position, antenna front.Antenna measurement accessory can mount and dismount flexibly; In the time of base station on-line testing antenna-feedback system, antenna measurement accessory is installed in the fixed position in antenna front; In the time normally working in base station, test fittings is removed.The testing mobile terminal of antenna, antenna measurement accessory and use thereof can be an antenna integral product, has fixing performance characteristics, and its performance quality is by producer's design, production and guarantee.
Described base station antenna system also for the characteristic parameter, antenna of each radio-frequency unit of storing base station antenna feeder system with respect to the permissible error of the index parameter of standing wave of the forward gain of test terminal and backward gain, the each connected node of base station antenna feeder system or the index parameter of reflection loss, base station antenna feeder system loss; The characteristic parameter of described radio-frequency unit comprises the Insertion Loss parameter of radio-frequency unit.Before test by the performance index parameter configuration of the interface connected node of the characteristic parameter of radio-frequency unit in base station antenna feeder system and each radio-frequency unit in base station system.
Shown in figure 3 and Fig. 4, the base station antenna feeder system of the present embodiment is made up of radio-frequency unit below:
1) " integrated antenna of tape test accessory (containing testing mobile terminal) "; 2) (1/2) " wire jumper of antenna end; 3) radio frequency connector; 4) (7/8) " feeder line; 5) lightning arrester; 6) (1/2) " wire jumper of base station end; (1/2) " wire jumper, radio frequency connector, (7/8) " feeder line and lightning arrester are all two-port radio-frequency devices, have the performance parameter of two-port radio-frequency devices, as: application band, S parameter, Insertion Loss, standing wave etc.Wherein, " integrated antenna of tape test accessory (containing testing mobile terminal), its performance parameter comprises: the S parameter of application band, antennal interface, standing-wave ratio parameter; Also comprise: the forward gain of integrated antenna and backward gain; Wherein " forward gain of integrated antenna " is defined as: the input signal power (PTA) of antenna input interface and testing mobile terminal antenna opening receive the difference of the signal power (PRM) detecting; " backward gain of integrated antenna " is defined as: the difference of the transmit signal power (PTM) of testing mobile terminal and the output signal power (PRA) of antenna output interface.
Shown in figure 3, on every link of the base station antenna feeder system of the present embodiment, there are 7 connected nodes, be respectively A node, B node, C node, D node, E node and F node.According to the index of base station system design and installation, the standing wave of known each connected node (VSWR) performance index.
Base station system comprises the software detection module of base station antenna feeder system, comprises the software detection administration module of the base station antenna feeder system in the webmaster backstage (OMC) of software detection module in software detection module, the base station system in testing mobile terminal and base station system.Wherein, in the software detection administration module of the base station antenna feeder system in the webmaster backstage (OMC) of base station system, comprise the parameter input window of the characteristic parameter variable of a base station antenna feeder system radio-frequency unit, for example, for inputting the characteristic parameter data of the base station antenna feeder system radio-frequency unit corresponding with base station engineering construction, the length parameter of feeder line.
Wherein, detection software module in test terminal, comprise the detection software module of the transmit signal power of sense terminals antennal interface, comprise the detection software module of the received signal power of sense terminals antennal interface, also comprise that terminal is to realize detecting and carrying out the communications software modules of information interaction with base station.Software detection module in base station system, comprise the detection software module of the transmit signal power of base stations detected antennal interface, comprise the detection software module of the received signal power of base stations detected antennal interface, also comprise that base station system is to realize detecting and carrying out the communications software modules of information interaction with testing mobile terminal.
On each receiver link of base-station transceiver system (BTS), there is respectively a chain way switch by software control, can be as required realize " any connection of each receiver link with close " by software control, and the mode of operation of realization " connection of an optional receiver link on demand, other receiver link is closed ".
Adc circuit module on the main diversity receiver link of base-station transceiver system (BTS) wherein adopts AD6655 chip, Qi Mei road ADC output link all can be by systems soft ware by the SPI Interface realization switch control of AD6655, realizes " main diversity link is communicated with simultaneously, only has main collection to be communicated with (diversity is closed) and only has diversity to be communicated with (main collection is closed) " three kinds of mode of operations.The base station system of embodiment as mentioned above, DAC circuit module in the main collection transmitter chain of base-station transceiver system (BTS) wherein adopts DAC5682 chip, and its DAC output link can be by systems soft ware by the software control Interface realization switch control of DAC5682.
When the forward link of base station antenna feeder system is detected, described base station antenna system is according to the signal power loss thresholding of forward link in the calculation of parameter base station antenna feeder system of pre-stored base station antenna feeder system; And calculate in real time the actual signal power loss of forward link in base station antenna feeder system; Signal power loss thresholding in the actual signal power loss of the base station antenna feeder system forward link calculating in real time and antenna-feedback system forward link is compared, when actual signal power loss is less than or equal to described power loss thresholding, the forward link of judging base station antenna feeder system is normal, when actual signal power loss is greater than described power loss thresholding, judge that the forward link of base station antenna feeder system is abnormal.
When the forward link of base station antenna feeder system is detected, described base station antenna system is according to the signal power loss thresholding of reverse link in the calculation of parameter base station antenna feeder system of pre-stored base station antenna feeder system; And calculate in real time the actual signal power loss of reverse link in base station antenna feeder system; Signal power loss thresholding in the actual signal power loss of the base station antenna feeder system reverse link calculating in real time and antenna-feedback system reverse link is compared, when actual signal power loss is less than or equal to described power loss thresholding, the reverse link of judging base station antenna feeder system is normal, when actual signal power loss is greater than described power loss thresholding, judge that the reverse link of base station antenna feeder system is abnormal.
As shown in Figure 5, corresponding to the method for the online base stations detected antenna-feedback system of above-mentioned base station system, comprising: in base station antenna system, place the antenna measurement accessory for fixing test mobile terminal in antenna fixed position; Described antenna measurement accessory comprises the fixing test position for placing testing mobile terminal, the polarised direction that testing mobile terminal is transmitted in the time of this fixing test position is relative fixing with the polarised direction of the each reception antenna in base station, and the output characteristic of the each reception antenna in base station is fixing in default error range; Testing mobile terminal is placed in fixing test position at described antenna measurement accessory, and by the information interaction base stations detected antenna-feedback system of described testing mobile terminal and base station system.
The output characteristic of base station reception antenna fixedly refers to that in default error range antenna is fixed with respect to the forward gain of test terminal and backward gain is fixed; The input signal power (PTA) that antenna refers to antenna input interface with respect to the forward gain of test terminal and test terminal antenna opening receive the difference of the signal power (PRM) detecting; Antenna refers to the difference of the transmit signal power (PTM) of test terminal and the output signal power (PRA) of antenna output interface with respect to the backward gain of test terminal.
In typical case's application, to the dual polarized antenna of integrated multiple reception antennas, the polarised direction that described antenna measurement accessory transmits test terminal in the time of described fixing test position is identical with the polarised direction of each reception antenna of dual polarized antenna, and the output characteristic of each reception antenna of dual polarized antenna is identical in default error range.
The detection of the detection that base station system transmits by the interactive communication of the testing mobile terminal on antenna measurement accessory and base station system and to testing mobile terminal antenna opening, the reverse antenna opening reception of detection, the detection that base station end forward facing antenna mouth is transmitted and the base station end signal to testing mobile terminal antenna opening reception signal, the on-line intelligence of realizing base station antenna feeder system detects.
Before test by the performance index parameter configuration of the interface connected node of the characteristic parameter of radio-frequency unit in base station antenna feeder system and each radio-frequency unit in base station system.Specifically comprise the following steps:
1) characteristic parameter of the each radio-frequency unit of pre-stored base station antenna feeder system, comprises the characteristic parameter of " integrated antenna of tape test accessory (containing testing mobile terminal) ".
Wherein, base station antenna feeder system 7/8 " characteristic parameter of the length (Insertion Loss) of feeder line is relevant with the Site Design of base station engineering; the 7/8 " characteristic parameter of the length (Insertion Loss) of feeder line, be according to base station Practical Project data, the parameter input window of the characteristic parameter variable by the base station antenna feeder system radio-frequency unit in webmaster backstage (OMC) is pre-stored.
2) the performance index parameter of the interface connected node of the each radio-frequency unit of pre-stored base station antenna feeder system.
3) the performance index parameter connecting according to the interface of the characteristic parameter of the pre-stored each radio-frequency unit of base station antenna feeder system, each radio-frequency unit and the link load fluctuating error of permission, base station system calculates the loss thresholding PRLt of the signal power loss thresholding PTLt of each forward link of base station antenna feeder system and the signal power of each reverse link of base station antenna feeder system.
Wherein " signal power loss of each forward link of base station antenna feeder system " is defined as: the power P TB that base station end forward facing antenna mouth transmits and testing mobile terminal antenna opening receive the difference of the signal power PRM detecting; " signal power loss of each reverse link of base station antenna feeder system " is defined as: the difference of the signal power PRB that the transmit signal power PTM that testing mobile terminal antenna opening detects and the reverse antenna opening of base station end receive.
To the detection method of base station antenna feeder system forward link, base station system is initiated the detection of base station antenna feeder system forward link, and by test configurations information notice testing mobile terminal, test process comprises the following steps:
1) controlling base station transceiver opens forward link to be measured and closes other forward link;
2) base station system is with base station forward facing antenna mouth transmit signal power PTB emissioning testing signal;
3) testing mobile terminal detects received power PRM the extremely described base station system of notice of this test signal;
4) base station system is calculated the difference PTL=(PTB-PRM of the received power of described base station forward facing antenna mouth transmit signal power and described test signal);
5), when relatively this difference is greater than the signal power loss thresholding of described forward link, judge that this forward link is abnormal, otherwise, judge that this forward link is normal;
6) base station system judges whether that other forward link needs test in addition, if do not have, finishes the test of the forward link of base station antenna feeder system; If have, continue other forward link of testing base station system, repeat above step 1) to step 6).
Forward link test schematic diagram as shown in Figure 3, in the situation that knowing following parameter: the VSWR of each RF tie point of antenna-feedback system requires (or requirement of reflection loss RL); The characterisitic parameter of antenna feeder radio-frequency unit is the Insertion Loss IL(FG of Insertion Loss IL and F node and G node particularly), the error △ IL of known permission; Can calculate: the thresholding of the loss of antenna-feedback system is { (PRM-PTB)+△ IL}; By test terminal and base station interactive communication, loss (PRM-PTB) actual measurement of the antenna-feedback system that can survey out; So, by (PRM-PTB) actual measurement and thresholding comparison, whether normally get final product automatic decision forward direction antenna feeder link.
To the detection method of base station antenna feeder system reverse link, base station system is initiated the detection of base station antenna feeder system reverse link, and by test configurations information notice testing mobile terminal, test process comprises the following steps:
1) base station system is determined the default transmitting power PTM of reverse link to be measured and testing mobile terminal and is notified to testing mobile terminal;
2) testing mobile terminal is with described default transmitting power emissioning testing signal;
3) base station system detects the received power PRB of this test signal;
4) base station system is calculated the difference PRL=(PTM-PRB of the received power of described default transmitting power and test signal), when this difference is greater than the signal power loss thresholding of described reverse link, judge that this reverse link is abnormal, otherwise, judge that this reverse link is normal.
Forward link test schematic diagram as shown in Figure 4, in the situation that knowing following parameter: the characterisitic parameter (comprising IL) of antenna feeder radio-frequency unit, the error of known permission; Can calculate: the thresholding of the loss (PRM-PTB) of antenna-feedback system; With loss and the thresholding comparison of actual measurement, whether normally get final product the reverse antenna feeder link of automatic decision.
System and the method thereof of above a kind of online base stations detected antenna-feedback system, it uses the best opportunity is in the completion of base station engineering construction, in the period of carrying out acceptance of engineering quality; Wherein at base station engineering construction, while finally fixing up an aerial wire, the test fittings of antenna and on testing mobile terminal be also installed simultaneously; Antenna for base station installation, carries out the testing authentication of base station antenna feeder system immediately.If test is passed through, take off immediately antenna measurement accessory and testing mobile terminal; If test is not passed through, analyze immediately the fault of getting rid of base station antenna feeder system, then retest, until test is passed through.
Because base station antenna feeder system uses, is exposed to the elements at outdoor natural environment for a long time, be easily out of order, so base station operator often need to safeguard detection to base station antenna feeder system.Now, use above technical scheme to detect if continue, need again, at antenna for base station mounted antennas test fittings and testing mobile terminal, could to realize detection, inconvenient operation.For this reason, the method of a kind of online base stations detected antenna-feedback system of this programme, proceed step below, that is: at base station engineering construction and acceptance period, by after being positioned over testing mobile terminal test on the fixing test position of described antenna measurement accessory and knowing that described base station antenna feeder system is normal, described antenna measurement accessory after removal, is also needed to have continued step below from antenna:
1) in antenna for base station overlay area, select test point placement testing mobile terminal and base station system to carry out information interaction, the performance data of the mobile terminal recording and base station system is stored as normal data.
This test point is fixing test position, with testing mobile terminal and base station system interactive communication and emissioning testing signal, and carry out the measurement of the performance parameter of testing mobile terminal and base station, and be stored in the performance data of the testing mobile terminal measuring and base station as normal data in the database of base station; Wherein " testing mobile terminal and base station measurement to normal data " is one to one with " the test configurations information of information, base station and the terminal of fixed position test point ", and is together stored in the database of base station system.
2), while needing base stations detected antenna-feedback system in the running of base station, testing mobile terminal is placed in to described test point and retests; With testing mobile terminal and base station system interactive communication and emissioning testing signal, carry out the measurement of the performance parameter of testing mobile terminal and base station.
3) whether the mobile terminal that basis records and the performance data of base station system and the difference of normal data judge that whether base station antenna feeder system is normal in default error range.
In the time that the data that measure equate in default error range with the normal data of storing in base station data, base station antenna feeder system is in normal condition;
In the time that the normal data of storing in the data that measure and base station data is unequal in default error range, base station system has fault.
In the time finding that base station system has fault, application prior art, in base station, end antenna opening place carries out areal survey, can judge whether base station antenna feeder system has fault.
In above-mentioned steps, measured testing mobile terminal and the performance parameter of base station, be all the performance parameter that can realize measurement by prior art, comprising: the minimum emissive power that terminal can proper communication; While comprising the test signal of base station transmitting constant power, the signal power that terminal receives and signal to noise ratio.
It should be noted that, in the situation that not conflicting, the combination in any mutually of the feature in embodiment and embodiment in the application.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
One of ordinary skill in the art will appreciate that all or part of step in said method can carry out instruction related hardware by program and complete, described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, the each module/unit in above-described embodiment can adopt the form of hardware to realize, and also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Claims (11)
1. a base station system for online base stations detected antenna-feedback system, comprises base station antenna system, base station
Antenna-feedback system and base station transceiver, is characterized in that,
Described base station antenna system comprises the antenna measurement accessory for fixing test terminal that is positioned over antenna fixed position;
Described antenna measurement accessory comprises the fixing test position for placing test terminal, the polarised direction that test terminal is transmitted in the time of this fixing test position is relative fixing with the polarised direction of base station reception antenna, and the output characteristic of base station reception antenna is fixing in default error range;
The output characteristic of described base station reception antenna fixedly refers to that in default error range antenna is fixed with respect to the forward gain of test terminal and backward gain is fixed; The input signal power (PTA) that antenna refers to antenna input interface with respect to the forward gain of test terminal and test terminal antenna opening receive the difference of the signal power (PRM) detecting; Antenna refers to the difference of the transmit signal power (PTM) of test terminal and the output signal power (PRA) of antenna output interface with respect to the backward gain of test terminal.
2. base station system as claimed in claim 1, is characterized in that,
To dual polarized antenna, the polarised direction that described antenna measurement accessory transmits test terminal in the time of described fixing test position is identical with the polarised direction of each reception antenna of dual polarized antenna, and the output characteristic of each reception antenna of dual polarized antenna is identical in default error range.
3. base station system as claimed in claim 1, is characterized in that,
Described base station antenna system, also for the characteristic parameter, antenna of each radio-frequency unit of storing base station antenna feeder system with respect to the permissible error of the index parameter of standing wave of the forward gain of test terminal and backward gain, the each connected node of base station antenna feeder system or the index parameter of reflection loss, base station antenna feeder system loss; The characteristic parameter of described radio-frequency unit comprises the Insertion Loss parameter of radio-frequency unit.
4. base station system as claimed in claim 1, is characterized in that,
Described base station antenna system, also for according to the signal power loss thresholding of the calculation of parameter base station antenna feeder system forward link of pre-stored base station antenna feeder system; And calculate in real time the actual signal power loss of forward link in base station antenna feeder system; Signal power loss thresholding in the actual signal power loss of the base station antenna feeder system forward link calculating in real time and antenna-feedback system forward link is compared, when actual signal power loss is less than or equal to described power loss thresholding, the forward link of judging base station antenna feeder system is normal, when actual signal power loss is greater than described power loss thresholding, judge that the forward link of base station antenna feeder system is abnormal.
5. base station system as claimed in claim 1, is characterized in that,
Described base station antenna system, also for according to the signal power loss thresholding of the calculation of parameter base station antenna feeder system reverse link of pre-stored base station antenna feeder system; And calculate in real time the actual signal power loss of reverse link in base station antenna feeder system; Signal power loss thresholding in the actual signal power loss of the base station antenna feeder system reverse link calculating in real time and antenna-feedback system reverse link is compared, when actual signal power loss is less than or equal to described power loss thresholding, the reverse link of judging base station antenna feeder system is normal, when actual signal power loss is greater than described power loss thresholding, judge that the reverse link of base station antenna feeder system is abnormal.
6. an antenna set, is characterized in that,
Described antenna set comprises test terminal, antenna measurement accessory and antenna;
Described antenna measurement accessory comprises the fixing test position for placing test terminal, the polarised direction that test terminal is transmitted in the time of this fixing test position is relative fixing with the polarised direction of described antenna, and the output characteristic of described antenna is fixing in default error range;
The output characteristic of described antenna fixedly refers to that in default error range antenna is fixed with respect to the forward gain of test terminal and backward gain is fixed; The input signal power (PTA) that antenna refers to antenna input interface with respect to the forward gain of test terminal and test terminal antenna opening receive the difference of the signal power (PRM) detecting; Antenna refers to the difference of the transmit signal power (PTM) of test terminal and the output signal power (PRA) of antenna output interface with respect to the backward gain of test terminal.
7. a method for online base stations detected antenna-feedback system, is characterized in that,
In base station antenna system, place the antenna measurement accessory for fixing test mobile terminal in antenna fixed position; Described antenna measurement accessory comprises the fixing test position for placing testing mobile terminal, the polarised direction that testing mobile terminal is transmitted in the time of this fixing test position is relative fixing with the polarised direction of the each reception antenna in base station, and the output characteristic of the each reception antenna in base station is fixing in default error range; Testing mobile terminal is placed in fixing test position at described antenna measurement accessory, and by the information interaction base stations detected antenna-feedback system of described testing mobile terminal and base station system;
The output characteristic of base station reception antenna fixedly refers to that in default error range antenna is fixed with respect to the forward gain of test terminal and backward gain is fixed; The input signal power (PTA) that antenna refers to antenna input interface with respect to the forward gain of test terminal and test terminal antenna opening receive the difference of the signal power (PRM) detecting; Antenna refers to the difference of the transmit signal power (PTM) of test terminal and the output signal power (PRA) of antenna output interface with respect to the backward gain of test terminal.
8. method as claimed in claim 7, is characterized in that,
Described base station antenna system is according to the signal power loss thresholding of forward link in the calculation of parameter base station antenna feeder system of pre-stored base station antenna feeder system; And calculate in real time the actual signal power loss of forward link in base station antenna feeder system; Signal power loss thresholding in the actual signal power loss of the base station antenna feeder system forward link calculating in real time and antenna-feedback system forward link is compared; when actual signal power loss is less than or equal to described power loss thresholding; the forward link of judging base station antenna feeder system is normal; when actual signal power loss is greater than described power loss thresholding, judge that the forward link of base station antenna feeder system is abnormal;
Described base station antenna system is according to the signal power loss thresholding of reverse link in the calculation of parameter base station antenna feeder system of pre-stored base station antenna feeder system; And calculate in real time the actual signal power loss of reverse link in base station antenna feeder system; Signal power loss thresholding in the actual signal power loss of the base station antenna feeder system reverse link calculating in real time and antenna-feedback system reverse link is compared, when actual signal power loss is less than or equal to described power loss thresholding, the reverse link of judging base station antenna feeder system is normal, when actual signal power loss is greater than described power loss thresholding, judge that the reverse link of base station antenna feeder system is abnormal.
9. method as claimed in claim 8, is characterized in that,
The method that calculates in real time the actual signal power loss of forward link in base station antenna feeder system comprises:
Base station system is initiated the detection to base station antenna feeder system forward link, by test configurations information notice test terminal; Base station system is opened forward link to be measured and is closed other forward link; Base station system sends test massage with allocating power PTB; Test terminal receives the power P RM that calculates this test signal after this test signal and feeds back to base station system, and the signal power loss of base station system calculation base station antenna-feedback system forward link is the difference of the power P RM of the test signal that calculates of allocating power PTB and test terminal.
10. method as claimed in claim 8, is characterized in that,
The method that calculates in real time the actual signal power loss of reverse link in base station antenna feeder system comprises:
Base station system is initiated the detection of base station antenna feeder system reverse link, and by test configurations information notice test terminal; Be positioned at the test terminal of antenna measurement accessory with allocating power PTM emissioning testing signal, and feed back to base station system; Base station system detects the power P RB of this test signal that each base station reverse antenna opening receives; The signal power loss of base station system calculation base station antenna-feedback system reverse link is the difference of the power P RB of this test signal of receiving of allocating power PTM and base station.
11. methods as claimed in claim 7, is characterized in that,
By after being positioned over testing mobile terminal test on the fixing test position of described antenna measurement accessory and knowing that described base station antenna feeder system is normal, by described antenna measurement accessory removal from antenna; Meanwhile, in antenna for base station overlay area, select fixing test point to place test terminal and base station system is carried out information interaction and measurement, and standard performance data storage using the performance data of the mobile terminal recording and base station system as this test point; When need base stations detected antenna-feedback system in base station operation process time, test terminal being placed in to described test point retests again, whether in default error range, judge that whether base station antenna feeder system is normal according to the difference of the performance data of the mobile terminal recording and base station system and the standard performance data that prestores.
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| CN201010567791.8A CN102014415B (en) | 2010-12-01 | 2010-12-01 | Method for detecting base station feed system on line, base station system and antenna suite |
| PCT/CN2011/075736 WO2012071879A1 (en) | 2010-12-01 | 2011-06-14 | Method, base station system and antenna suite for online detection of base station antenna feeder system |
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| CN201010567791.8A CN102014415B (en) | 2010-12-01 | 2010-12-01 | Method for detecting base station feed system on line, base station system and antenna suite |
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| CN102014415B (en) * | 2010-12-01 | 2014-07-02 | 中兴通讯股份有限公司 | Method for detecting base station feed system on line, base station system and antenna suite |
| CN102905282B (en) * | 2011-07-29 | 2015-08-26 | 扬州海菱电讯科技实业公司 | Detect the method for indoor distribution antenna-feedback system and indoor antenna-feedback system checkout gear |
| CN102440023B (en) * | 2011-10-31 | 2014-01-08 | 华为技术有限公司 | Detection method and device of antenna feeder cross |
| CN103139817B (en) * | 2011-12-02 | 2017-10-31 | 中兴通讯股份有限公司 | The method and device of diagnosing base station channel failure |
| CN103178909B (en) * | 2011-12-26 | 2015-07-29 | 鼎桥通信技术有限公司 | The fault detection method of standing wave measurement circuit and device |
| CN103067960B (en) * | 2012-12-17 | 2016-03-09 | 杭州网策通信技术有限公司 | Indoor distribution system antenna feeder monitoring method |
| CN104284353B (en) * | 2013-07-09 | 2018-12-07 | 中国移动通信集团黑龙江有限公司 | A kind of wireless local area network service performance test methods and system |
| CN104936214B (en) * | 2015-06-11 | 2019-03-15 | 中国联合网络通信集团有限公司 | Detect the method and device of antenna feeder covering variation |
| CN106330345B (en) * | 2015-06-29 | 2020-03-06 | 中兴通讯股份有限公司 | Method and device for detecting connection line sequence of electrically-tunable antenna |
| CN105162714B (en) * | 2015-10-22 | 2018-03-27 | 上海斐讯数据通信技术有限公司 | The method for testing performance and system of rf terminal |
| CN108934038B (en) * | 2017-05-23 | 2021-10-29 | 中国移动通信有限公司研究院 | Base station state testing method and device, base station testing system and terminal |
| TWI678541B (en) * | 2018-07-31 | 2019-12-01 | 和碩聯合科技股份有限公司 | Testing system and testing method |
| CN109194419B (en) * | 2018-09-11 | 2020-08-28 | 京信通信系统（中国）有限公司 | Station opening method and device, electronic equipment and storage medium |
| CN111030760B (en) * | 2019-12-23 | 2022-04-22 | 京信网络系统股份有限公司 | Standing wave detection method and device |
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| WO2012071879A1 (en) | 2012-06-07 |
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